package Demo2;

public class KeyBoard implements USB
{
    @Override
    public void openDevices() {
        System.out.println("插上键盘");
    }

    public void input(){
        System.out.println("疯狂敲击键盘盘！");
    }
    @Override
    public void closeDevices() {
        System.out.println("关上键盘");
    }
}
